Add a new command line option to mysqlbinlog, to choose between my_b_write_quoted() and pure HEX notation

Add a new command line option to mysqlbinlog, to choose between my_b_write_quoted() and pure HEX notation.

Create a table which has fields of type BLOB or GEOMETRY. Have binary log format as 'row'.

For example:

mysql> create table t(f blob) engine=innodb;

Query OK, 0 rows affected (0.07 sec)

mysql> insert into t values (0x000000000101000000000000000000F03F000000000000F03F);

Query OK, 1 row affected (0.01 sec)

Try to print the binarylog by using "mysqlbinlog -v"

### INSERT INTO `test`.`t`

### SET

###   @1='\x00\x00\x00\x00\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00�?\x00\x00\x00\x00\x00\x00�?'

# at 574

#200923 15:31:19 serve

The BLOB field value gets printed in semi hex format. Hence when the above
'mysqlbinlog verbose' query is fed back to 'mysql client' by replacing '@1' with appropriate field name it inserts entirely a new value. Please find the following output.

mysql> insert into t values ('\x00\x00\x00\x00\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00�?\x00\x00\x00\x00\x00\x00�?');

Query OK, 1 row affected (0.05 sec)

mysql> select * from t;

+-------------------------------------------------------------------------+

| f                                                                       |

+-------------------------------------------------------------------------+

|              �?      �?                                                 |

| x00x00x00x00x01x01x00x00x00x00x00x00x00x00x00�?x00x00x00x00x00x00�?     |

+-------------------------------------------------------------------------+

2 rows in set (0.00 sec)

Suggested fix by Bar is mentioned below:

Make to row event decoder to print data in pure HEX format.
For ex:

### INSERT INTO `test`.`t`

### SET

###   @1=0x0000000001010000000000000000.....;

With the above the 'mysqlbinlog verbose query' can be given as input to mysql client.

Add a new command line option to mysqlbinlog, to choose between `my_b_write_quoted() ` and pure HEX notation: 0xAABBCC. `my_b_write_quoted()` prints control character using escape sequences, and other characters - literally. This is not something the parser can understand. It's supposed to be read by a human. Add a new function, to print ALL characters using HEX notation. Both control and non-control.